Smart Way of Learning Math

Free Practice 7.G.A.2 – 9011901

Which of the following conditions can not be a triangle?A. Side lengths of $5$, $4$, and $13$A. Side lengths of $5$, $4$, and $13$B. Angles of $92^{o}$, $64^{o}$, and $24^{o}$C. Side lengths of $4$, $5$, and $4$D. Side lengths of $6$, $6$, and $10$E. Angles of $90^{o}$, $64^{o}$, and $26^{o}$

1. The sum of three angles of a triangle equals $180^{o}$. So, angles of $92^{o}$, $64^{o}$, and $24^{o}$ can form a triangle. Also, angles of $90^{o}$, $64^{o}$, and $26^{o}$ can form a triangle. 2. To determine a triangle, the length of one side has to be less than the sum of the other two sides. So, side lengths of $5$, $4$, and $13$ can not form a triangle because $13$ is greater than the sum of $5$ and $4$ which is $9$. No More Steps